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Datasheet: L2685 (STMicroelectronics)

LOW DROPOUT VOLTAGE REGULATORS

 

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STMicroelectronics
L2605
L2685-L2610
LOW DROPOUT VOLTAGE REGULATORS
March 1993
OUTPUT VOLTAGE OF 5, 8.5 AND 10 V
OUTPUT CURRENT UP TO 500 mA
NO EXTERNAL COMPONENTS
LOW DROP OUT VOLTAGE
OVERVOLTAGE PROTECTION (
100V)
REVERSE VOLTAGE PROTECTION
SHORT CIRCUIT PROTECTION
CURRENT LIMITING
THERMAL SHUTDOWN
DESCRIPTION
The L2600 series og three terminal positive regu-
lators is specially designed to stabilize power sup-
plies car instrumentation in vehicles
with 12V
battery. Available with output voltages equal to 5V,
8.5 V, 10V, they can supply an output current to
500mA.
These devices are protected against load dump
and field decay transients (
100V), reverse battery,
short circuit and thermal overload.
Order codes
Output Voltage
TO-220
SOT-82
L2605V
L2605X
5 V
L2685V
L2685X
8.5 V
L2610V
L2610X
10 V
BLOCK DIAGRAM
TO-220
SOT-82
1/6
APPLICATION CIRCUIT
Symbol
Parameter
SOT-82
TO-220
R
th-j-case
Thermal resistance junction-case
Max
8
C/W
4
C/W
Rt
h-j-amb
Thermal resistance junction-ambient
Max
100
C/W
75
C/W
THERMAL DATA
2/6
PIN CONNECTION (top view)
Symbol
Parameter
Value
Unit
V
i
DC Input Voltage
DC Input Reverse Voltage
Transient Input Overvoltage:
Load Dump:
5ms
t
rise
10ms
f
Fall Time Costant = 100ms,
R
source
0.5
Field Decay:
5ms
t
fall
10ms
r
Rise Time Costant = 33ms,
R
source
10
35
-28
+ 100
- 100
V
V
V
V
P
D
Power Dissipation
Internally Limited
T
j
, T
stg
Junction and Storage Temperature Range
- 55 to 150
C
ABSOLUTE MAXIMUM RATINGS
(*) Note : C
1
and C
2
are only needed if the load capacitance exceeds 1000 pF, Recommended values are C
1
= 0.1
F and
C2
100
F.
L2605-L2685-L2610
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
o
Output Voltage
I
o
= 500 mA
V
i
= 12 to 16 V (L2605)
V
i
= 12 to 16 V (L2685)
V
i
= 12 to 16 V (L2610
4.80
8.15
9.60
5.00
8.50
10.00
5.20
8.85
10.40
V
V
i
Operating Input
Voltage
See Note (*)
28
V
V
o
V
o
Line Regulation
I
o
= 50 mA
V
i
= 12 to 20 V
2
8
mV/V
Load Regulation
V
i
= 14 V
I
o
= 50 to 500 mA
4
9
mV/V
V
i-o
Dropout Voltage
I
o
= 500 mA
1.9
V
I
d
Quiescent Current
I
o
= 50 mA
20
45
mA
V
o
T
Output Voltage Drift
I
o
= 50 mA
V
i
= 14 V
T
amb
= - 12 to 80
C
- 1
mV/
C
I
sc
Output Short Circuit
Current
1.1
1.8
A
SVR
Supply Voltage
Rejection
V
i
= 16
f = 100 Hz
V
i
= 2 V
I
o
= 500 mA
60
dB
R
o
Output Resistance
I
o
= 500 mA
0.05
e
N
Output Noise Voltage
BW = 100 Hz to 10 KHz
20
V
ELECTRICAL CHARACTERISTICS (T
j
= 25
C, V
i
= 14V, unless otherwise specified)
(*) Note: For DC innput voltage 28 V <V
i
<35 V the device is not operating
Symbol
Parameter
Test Condition s
Min.
Typ.
Max.
Unit
V
o
Output Voltage
I
o
= 500 mA
V
i
= 12.5 to 16 V (L2605)
V
i
= 12.5 to 16 V (L2685)
V
i
= 12.5 to 16 V 2610)
4.70
8.00
9.40
5.00
8.50
10.00
5.30
9.00
10.60
V
V
i
Operating Input
Voltage
See Note (
)
26
V
V
o
V
o
Line Regulation
I
o
= 50 mA
V
i
= 12.5 to 20 V
3
12
mV/V
Load Regulation
V
i
= 14 V
I
o
= 50 to 500 mA,
5
13
mV/V
V
i-o
Dropout Voltage
I
o
= 500 mA
2.5
V
I
d
Quiescent Current
I
o
= 50 mA
29
65
mA
I
sc
Output Short Circuit
Current
1.1
2.1
A
ELECTRICAL CHARACTERISTICS (- 40
T
j
125
C (note 2), V
i
= 14 V, unless otherwise specified)
Notes: (
). For a DC input voltage 26 V < Vi < 35 V the device is not operating.
2. The limits are guarandeed by design correlation and statistical control on production samples over the indicated
temperature and supply voltage ranges.
3/6
L2605-L2685-L2610
4/6
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
4.8
0.189
C
1.37
0.054
D
2.4
2.8
0.094
0.110
D1
1.2
1.35
0.047
0.053
E
0.35
0.55
0.014
0.022
F
0.8
1.05
0.031
0.041
F2
1.15
1.4
0.045
0.055
G
4.95
5.08
5.21
0.195
0.200
0.205
H2
10.4
0.409
H3
10.05
10.4
0.396
0.409
L2
16.2
0.638
L3
26.3
26.7
27.1
1.035
1.051
1.067
L5
2.6
3
0.102
0.118
L6
15.1
15.8
0.594
0.622
L7
6
6.6
0.236
0.260
Dia
3.65
3.85
0.144
0.152
TO220 PACKAGE MECHANICAL DATA
L2605-L2685-L2610
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
7.4
7.8
0.291
0.307
B
10.5
10.8
0.413
0.425
b
0.7
0.9
0.028
0.035
b1
0.49
0.75
0.019
0.030
C
2.4
2.7
0.094
0.106
c1
1.2
0.047
D
15.7
0.618
e
2.2
0.087
e3
4.4
0.173
F
3.8
0.150
H
2.54
0.100
SOT82 PACKAGE MECHANICAL DATA
5/6
L2605-L2685-L2610
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